Stop motion for roving machines



1,633,284 21 1927" J. H. OWEN STOP MOTION FOR ROVING IACHINES Filed June 28, 1926 Patented June 21, 1927.

UNITED STATES PATENT OFFICE.

JOHN H OWEN, OF NEWBERRY, SOUTH CAROLINA, ASSIGNOR OF ONE-THIRD TO THOMAS N. CROCKER AND ONE-THIRD TO BYRON V. CHAPMAN, BOTH OF NEW- IBERRY, SOUTH CAROLINA.

STOP MOTION FOR ROVING MACHINES.

Application filed June 28, 1926. Serial No. 119,091.

The present invention relates to improvements in roving machines, and more particularly to a stop motion attachment for a roving machine of the Saco Pettee and Saco Lowell type.

In the conversion of cotton slubber roving into intermediate "and finer rovings, much waste and expense is incurred due to the fact that the .slubbers cannot be made to produce bobbins having the same number of yards of roving wound upon them as other bobbins produced by other slubbers. This peculiarity necessitates that bobbins coming fr'omone slubber being creeled in and run off on a certain intermediate frame, and this intermediate roving must be creeled and run off on a certain fine frame thus creating confusion by causing this grouping of the consecutive processes or steps.

The present invention is designed to eliminate the above described conditions and by itsapplication to a set of slubbers, it will cause these slubbers to produce bobbins which when creeled in and run off on,intermediate frames, will be found to contain the same yardage of roving. Likewise intermediate roving frames in turn are caused to produce bobbins containing the same amount of roving. The elimination of varying bobbins permits all. roving to be deposited in a common bin, regardless of whatever frame any particular lotmay have been made upon and it is then ready to be creeled in later processes as needed and without regard to i its framesource. 7

One ofthe important objects of the present invention is to provide a stop motion, for a roving machine which is of such construction ast-o permit the device to be readily and easily attached to a roving machine 'without necessitating any material alterations of the machine, and when installed, the device will at all timessbe positive and eflicient in its operation.

Awfurther object is to provide a stop motion for rovin machines of the'above mentioned character which is simple in construction, inexpensive, strong and durable and further well adapted to the purpose for which it is designed.

Other objects and advantages of the invent-ion will become apparent as the nature of theinvention-is better understood, and

chine of the pivotally supported when taken in connection with the accompanying drawing. 7

In the accompanying drawing forming a part of this application and in which like numerals indicate like parts Figure 1 is a fragmentary elevational View of a roving machine of the Sam Lowell type showing my improved stop motion attachment mounted thereon.

Figure 2 is a sectional view taken a pproximately on l ne 2-2 of Figure 1 looking in the direction ofthe arrows, and

Figure 3' is an end elevation showing the actuating means for the knock-off lever.

In the drawing wherein for the purpose of illustration is shown the preferred embodiment of Thy-invention, the numeral 1 desigframe of a roving ma- Saco Lowell or Saco Pettee type, and the stop motion mechanism which forms a part of the machine will be referred to only in so far as such parts are adapted to be associated with my invention. The stop motion or knock off mechanism comprises a vertically disposed lever '2 which is at its upper end as at 3. A horizontally disposed knock oif lever 4 is secured at one end to the intermediate portion of said lever 2 21s at 5, the opposite end of said lever being provided with a depending portion 6, the purpose of which will be hereinafter more fully described.

The vertical shaft 7 which forms a part of the operating mechanism for the roving machine has supported on its intermediate portion the worm '8 and this shaft 7 is operated in the manner well known in the art.

thus for described the parts of the roving machine with which my invention is as soeiated have been briefly discussed and I will now specifically prescribe the construction of my attachment.

The same comprises a horizontally disposed shaft 9, the forward end of which is journaled in a suitable bearing 10 provided therefor on the lower portion of a vertically disposed supporting bracket 11, the upper portion of this bracketbeing secured to portion of the frame of the roving machine as illustrated generally at 12. The other end of the shaft extends through a bearing 13 nates generally the which is formed on a bracket 14, the latter neled standards 15 which forms a part of the roving machine. As is clearly shown in Figure 2, this bracket 14 is adapted for lateral adjustment by reason of the provision of the slotted portion 16 of said bracket, and the cooperating securing bolts 17. The rear end of this shaft extends beyond the channeled standard 15 and is further disposed below the depending rear end 6 of the knock off lever at.

A worm gear 18 is secured on the forward portion of the shaft 9 by means of the set screw 19 extending through the collar or hub portion 20 of the worm gear and engaging the shaft 9. A suitable collar 21 is secured on the shaft 9 and abuts the hub portion 20 of the worm gear for locking the worm gear against lateral slidable movement on the shaft. This worm gear 18 meshes with the worm 8 which is associated with the vertical shaft 7 in the manner as clearly shown in the drawing.

A disc 22 is secured on the rear end portion of the shaft 9 so as to rotate therewith and extending laterally from the rear face of the disc is the pin 23, the purpose of which will be hereinafter .more fully described.

A cam 2a is loosely mounted on the rear end portion of the shaft 9 and the same is disposed adjacent the rear face of the disc 22 and the cam is prevented from becoming disengaged from the rear end of the .shaft through the medium of the collar 25 and the set screw 26. This loosely mounted cam 24E is adapted for cooperation with the stud pin 23 which projects laterally from the rear face of the disc 22 in the manner to be presently apparent.

My invention further includes the provision of a leg 27 formed of an elongated fiat strip of metal, the upper end being secured to the depending portion 6 of the knock off lever 4: by any appropriate securing means such as is shown at 28. The intermediate portion of the leg 27 is bent as at 29 so that the lower portion is disposed forwardly, and the lower end of this leg is bent laterally to provide a foot 30 as is clearly shown in. Figure 3. The foot is disposed adjacent the rear face of the disc 22 and is spaced slightly from the stud pin 23, yet is arranged within the path of move ment on the outer free end of the cam 24. A heel portion 31 is secured on the bottom of the intermediate portion of this laterally disposed foot 30.

The operation of the stop motion mechanism for the roving machine may be briefly stated as follows: Intermittent impulses of movement are imparted by the worm 8 on the vertical change shaft 7 of the roving machine mechanism to the worm gear 18 which is rigidly secured on the shaft 9 which will cause the shaft to rotate in a corresponding amount and also will cause the simultaneous rotation of the disc 22 which carries the laterally projecting pin 23. The cam 2 f being loosely mounted on the shaft 9, adjacent the outer face of the disc 22, it will be obvious that when the disc which is rotating in a direction of the arrow has its pin 23 in engagement with the cam 24:, the cam will be caused to rotate with the shaft and the pin 23 which engages the cam will effect the upward swinging movement of the cam.

As the cam is rotated through that part of the revolution beginning at its lowest point of travel, the cam will shortly engage the lateral foot 30 of the leg 27 and will force this leg upwardly and as a result of such continued engagement, the knock ofi lever will be actuated to effect the immediate stopping of the machine at the same point of the bobbin filling operation each time. As the manner in which the knock off lever 4t functions is well known in the art, a detailed description thereof is thought unnecessary.

In this manner, the roving frames will produce bobbins having wound upon them the like amount of roving each time a set is doffed and as this will permit indiscriminate mixing of bobbins regardless of frame identity, considerable expense and waste will be eliminated. The number of bobbins necessary for operation of the group of machines equipped with this device will be reduced by reason of there being no partly filled bobbins to be emptied manually before the same can be used again.

The simplicity of my invention enables the same to be readily and easily attached to roving machines without necessitating any material alterations of the parts of the machine with which the device should be as'- sociated and furthermore the mechanism will at all times be positive and efficient in its operation.

While I have shown the preferred embodiment of my invention it is to be understood-' that minor changes in arrangement of parts may be resorted to without departing from the spirit of the invention and the scope of the appended claim.

Having thus described the invention, what I claim as new and desire to secure by Letters Patent is In a stop motion for a roving machine, the combination with the frame, vertical change shaft and the knock-off lever, of means interposed between the shaft and the lever and operatively connected therewith whereby the lever will be actuated at a predetermined time, said means comprising a horizontally arranged shaft supported on the frame, intermeshing gearing connecting one end of the shaft with said change shaft, a

leg depending from the free end of the the size, shape, and

the heel thereon to move said leg upwardly and operate the knock-off lever, said last mentioned means comprising a disc secured 10 on the horizontal shaft, a pin projecting laterally from the outer face thereof, said foot being disposed adjacent the outer face of the disc at a point above the pin, and .a cam loosely mounted on the shaft, said laterally projecting pin adapted to engage the 15 cam for moving the same into engagement With said foot and the heel carried thereby. In testimony whereof I aflix my signature.

JOHN H. OWEN. 

